W32.Zotob.K

W32.Zotob.K is a worm that opens a back door and exploits the Microsoft Windows Plug and Play Buffer Overflow Vulnerability (as described in Microsoft Security Bulletin MS05-039) on TCP port 445.

Note: While computers running Windows 95/98/Me/NT4/XP operating systems cannot be infected remotely, it is possible they could be infected if W32.Zotob.K is executed locally (although this is an unlikely occurrence). Vulnerable Windows 2000 computers could then be infected by the compromised computer.

Protection

• Initial Rapid Release version August 24, 2005
• Latest Rapid Release version August 2, 2008 revision 020
• Initial Daily Certified version August 24, 2005
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date August 24, 2005

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

• Wild Level: Low
• Number of Infections: 0 - 49
• Number of Sites: 0 - 2
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Easy

Damage

• Damage Level: Medium

Distribution

• Distribution Level: Low